Home / 18,126.30-25,007.67-11,847.90

Finding the Fourth Proportional to 18,126.30, 25,007.67 and 11,847.90

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Solution

The fourth proportional to 18,126.30, 25,007.67 and 11,847.90 is: 16,345.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,126.30 : 25,007.67 = 11,847.90 : x
  2. Step 2: Convert to fraction form
    18,126.30/25,007.67 = 11,847.90/x
  3. Step 3: Cross multiply
    18,126.30x = 25,007.67 × 11,847.90
  4. Step 4: Simplify right side
    18,126.30x = 296,288,373.39
  5. Step 5: Solve for x
    x = 296,288,373.39/18,126.30
  6. Step 6: Final answer
    x = 16,345.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.